My wife has received a £70 Parking Charge Notice from Parking Eye after parking for 1 hour 43 minutes in a supermarket car park. It was our Christmas food shop, so took a long time. Apparently the limit was 1 hour 30 minutes, but she didn't go up to one of the signs to read it in detail, and assumed that the time limit would be a minimum of 2 hours as this is the norm for such car parks. I've read through the Ask HJ questions, but most relate to the pre Supreme Court ruling. Is there any argument here? Is the time limit just down to whatever is on the sign, so they can give less and less time to maximise penalties?

I am aware that Parking Eye pay land owners to have the right to cover the car parks and makes its profits from collecting the penalty charges, so I guess there is an obvious incentive for them to reduce the time, but is it fair or more to the point legal?